answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shkiper50 [21]
2 years ago
5

A scientist is testing the effectiveness of Drug X on cancer. She gives a small amount of the drug to the mice that have cancer.

She gives each mouse a different amount from 1 to 10 grams, and then measures the size of the tumor in each mouse before the drugs and two weeks after the drugs. She gives one of the nice sugar instead of Drug X. What is her dependent variable in this experiment? A. The amount of Drug x given to the mice. B. The size of the tumor after Drug X. C. The mouse that received sugar instead of Drug X. D. The size of the tumor before Drug X
Biology
1 answer:
anzhelika [568]2 years ago
4 0

The answer is B. A dependent variable is one that varies according to the modulated independent variable. In this case, the independent variable is A -‘The amount of Drug x given to the mice’ since it is the one that is being controlled in the experiment.

You might be interested in
Multicellular organisms must be protected from the external environment. Because of this, cells of even the simplest multicellul
mihalych1998 [28]

Hey there!!




Your answer is epithelial tissue. This tissue is the one that does it part to protect all of the other cells around too or form the external barrier.




Hope this helps!!


Sincerely,

Ans

3 0
2 years ago
Read 2 more answers
Quiz: sensation and perception select the best answer to each question. our perception of the brightness of a color is affected
zmey [24]

Our perception of the brightness of a color is affected mainly by: the amplitude of light waves.

Night and peripheral vision depend mainly on rods, while daylight and acute vision depend mainly on cones.

The amount of light entering the eye is regulated by changes in the size of the pupil.

If you project a red, a green, and a blue light into space, the point at which the three lights cross will lead to the perception of white light.

eric has been wearing red welding goggles for the past 30 minutes. Based on the opponent-process theory of color vision, when Eric takes off the red goggles, he should expect that objects will temporarily appear to be green.


3 0
2 years ago
How does the introduction of invasive species, such as the brown tree snake, upset the stability of an ecosystem?
notka56 [123]

Answer:

The species is not prey to what is already living there and as a result may reproduce uncontrollably and end up causing the other species to go extinct by stealing the resources they need.

Explanation:

6 0
2 years ago
The combining form that refers to the male gland that encircles the upper end of the urethra is:
AleksandrR [38]
The answer to this question would be: prostate glands

The term upper end is a bit ambiguous and it should be better to call it the proximal end of the urethra. The upper ends of the urethra, near the bladder, there is an organ called prostate. The prostate is a gland that only found in males as its function was to produce seminal fluid, make it a bit alkali. 
6 0
2 years ago
Read 2 more answers
Rick has difficulty remembering what he reads. which strategy will help him remember more easily? rick should adopt the strategy
Oliga [24]
<span>Actually rick should develop a strategy by breaking down the reading tasks in to small small mini portions or parts, which should be clealry analysed and visualized as much as possible, then repeat the same procedure for the next parts of the study one by one and finally link them, and lastly practice the above few times is very very important as well.</span>
3 0
2 years ago
Read 2 more answers
Other questions:
  • A species of snapping turtles has a tongue that resembles a worm. The tongue is used to attract small fish. Which best describes
    7·1 answer
  • In classical conditioning the ns becomes a ________ after it reliably signals the impending occurrence of the ________.
    7·1 answer
  • The success of organisms depends largely on their adaptions to their particular environment. What adaptations does the wood frog
    5·2 answers
  • Mendel's principle of segregation implies that the two members of an allelic pair of genes _____.
    8·2 answers
  • What do you think makes skin so susceptible to uncontrolled cellular growth?
    7·2 answers
  • Arrange the stages of mitosis shown in the diagrams in sequential order. Use the ABCDE labels on the drawings to indicate the or
    8·2 answers
  • Gm announces it has invented a car that not only drives you places, but also has an interesting side effect...if you sit in the
    5·1 answer
  • If hares moved faster and were thus harder for lynx to capture, which rate in the Lotka-Volterra predator-prey model would chang
    8·1 answer
  • Look at the training plan for a junior hockey team. What body systems do you think would be most involved in strength training?
    5·2 answers
  • Dangling high above the ground, this rock climber relies on muscular strength to pull her weight higher and higher. However, mus
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!